tarantool / tarantool / 23450

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<a href="https://github.com/tarantool/tarantool/commit/<a class=hub.com/tarantool/tarantool/commit/3e58445e0d9d93f00e3a7c2ee80d46581b97d778">3e58445e0<a href="https://github.com/tarantool/tarantool/commit/3e58445e0d9d93f00e3a7c2ee80d46581b97d778">&quot;&gt;vinyl: add NULL check of xrow_upsert_execute() retval

xrow_upsert_execute() can fail and return NULL for various reasons.
However, in vy_apply_upsert() the result of xrow_upsert_execute() is
used unconditionally which may lead to crash. Let&amp;#39;s fix it and in case
xrow_upser_execute() fails return from vy_apply_upsert() NULL value.

Part of #4957

N.B. Test becomes release-disabled in 2.4, 2.3 and 1.10 since we have to
unthrottle scheduler manually to force checkpoint process. To achieve
this, we use error injection ERRINJ_VY_SCHED_TIMEOUT which is available
only in debug mode.

(cherry picked from commit </a><a class="double-link" href="https://github.com/tarantool/tarantool/commit/<a class="double-link" href="https://github.com/tarantool/tarantool/commit/35162fa4717054282c3edc4c575b94846921cc42">35162fa47</a>">35162fa47</a><a href="https://github.com/tarantool/tarantool/commit/3e58445e0d9d93f00e3a7c2ee80d46581b97d778">)

42001 of 50831 relevant lines covered (82.63%)

952520.93 hits per line